28140721

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{751}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 33136128

約数和(自身を除く): 4995407

約数列:

[1, 7, 53, 101, 371, 707, 751, 5257, 5353, 37471, 39803, 75851, 278621, 530957, 4020103, 28140721]

約数ペア:

[(1, 28140721), (7, 4020103), (53, 530957), (101, 278621), (371, 75851), (707, 39803), (751, 37471), (5257, 5353)]